M24SR16-Y Datasheet, PDF (46/89 Pages) STMicroelectronics – Support of NDEF data structure

I²C and RF command sets
M24SR16-Y
Table 43 defines the R-APDU of the Enable Verification Requirement command.
Table 43. R-APDU of the Enable Verification Requirement command
Data
SW1
SW2
Comment
Length
0
1 byte
1 byte -
Value
-
0x90
0x00
Command completed, the password is
correct
Value
-
0x69
0x81 Cmd is incompatible with the file structure
Value
Value
Value
Value
-
0x69
0x82 Security status not satisfied
-
0x6A
0x80 CC file or System file selected
-
0x6A
0x82 File or application not found
-
0x6A
0x86 Incorrect P1 or P2 values
5.7.4
Disable Verification Requirement command
The Disable Requirement command deactivates the protection by password of the NDEF
file. When this command is successful, the read or write access to the NDEF file is granted
without security requirements. It can be performed only if the security status satisfies the
security attributes for this command.
Before sending this command, the verify command with the correct NDEF write password
shall be issued. Thus, this command changes the access right of the NDEF file.
This command can update the right access of the NDEF file by writing into the EEPROM. In
this case, the response timing will be around 6 ms.
Table 44 defines the Disable Verification Requirement command.
Table 44. Disable Verification Requirement command format
Name
CLA
INS
P1 & P2
Lc
Data
Le
0x00
0x26
2 bytes
-
-
-
Class byte
Instruction code
New security attributes
0x0001: Disable the read protection of the NDEF file
0x0002: Disable the write protection of the NDEF file
Other: RFU
-
-
-
Table 45 defines the R-APDU of the Disable Verification Requirement command.
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